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Table 3 Mean counts of whitefly individuals/leaf on sweet pepper leaves in the greenhouse during the winter plantation of 2016/17

From: Comparative study between biological and chemical control programs of certain sweet pepper pests in greenhouses

Weeks of inspection

Mean numbers of whitefly individuals/leaf for different treatments

LSD0.05

F value

Control

BCG

CCG

1

1.40 ± 0.15a

1.30 ± 0.2a

1.17 ± 0.17a

0.78

0.71

3

2.75 ± 0.21a

1.43 ± 0.29b

1.71 ± 0.22b

0.63

4.97

5

4.80 ± 0.24a

1.90 ± 0.30b

2.00 ± 0.26b

0.82

24.28

7

9.62 ± 0.35a

1.50 ± 0.5b

1.92 ± 0.37b

1.25

50.54

9

5.17 ± 0.38a

2.64 ± 0.54b

4.17 ± 0.4ab

0.92

4.62

11

5.47 ± 0.40a

2.87 ± 0.42b

5.23 ± 0.42a

1.41

11.33

13

4.47 ± 0.56a

2.45 ± 0.58b

4.50 ± 0.58a

1.70

5.44

15

3.94 ± 0.42a

2.12 ± 0.43b

2.33 ± 0.43b

1.12

6.17

17

4.05 ± 0.28a

2.06 ± 0.31b

2.30 ± 0.39b

1.60

13.60

19

3.17 ± 0.41a

1.93 ± 0.36b

1.75 ± 0.5b

1.14

3.73

21

3.75 ± 0.26a

2.13 ± 0.29b

1.75 ± 0.37ab

1.50

4.01

23

7.19 ± 0.35a

2.89 ± 0.45b

2.45 ± 0.37b

2.15

45.34

25

9.94 ± 0.55a

3.09 ± 0.69b

3.88 ± 0.56b

3.27

37.48

27

15.60 ± 0.93a

2.88 ± 1.18b

7.64 ± 0.96b

3.54

34.32

29

20.62 ± 0.88a

2.56 ± 1.12b

11.33 ± 0.91b

4.12

70.76

  1. Means followed by the same letter at the same row are not significantly different (p ≤ 0.05)